#wrapper{
    width: 1000px;
    margin: auto;
}
.container{
    width: 770px;
    height: 320px;
    position: relative;
    overflow: hidden;
}
ul{
    list-style: none;
    padding: 0px;
    margin: 0px;
    display: block;
    -webkit-transition: 0s ease-in-out;
}
#left{
    height: 320px;
    width: 85px;
    position: absolute;
    left: 0px;
    top:0px;
    z-index: -1;
    visibility: hidden;
}
#main{
    height: 320px;
    width: 680px;

}
#main_img1,#main_img2,#main_img3,#main_img4,#main_img5{
    position: absolute;
    left:90px;
    top:0px;
    z-index: -1;
}
#main_img1{
    z-index: 0;
}
#left:hover,#main:hover +  #left{
    visibility: visible;
    z-index: 1;
}
#thumb_img2:hover #main #main_img1{
    z-index: -1;
}
#thumb_img2:hover #main #main_img2{
    z-index: 0;
}

